26 use the best method available to find the volume

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26. Use the best method available to find the volume of the region bounded by sin y x and 2 y x revolved about (a) y = 1, (b) x = 1, (c) the y -axis, and (d) the x -axis.
Section 5.4 4. Approximate the length of the curve using n secant lines for n = 2; n = 4.
14. Compute the arc length exactly.
2 2 2 2 2 2 2ln(4 ), 0 1 ( ) 2ln(4 ) 4 '( ) 4 4 1 '( ) 1 4 y x x f x x x f x x x f x x 30. Set up the integral for the surface area of the surface of revolution, and approximate the integral with a numerical method.
32. Set up the integral for the surface area of the surface of revolution, and approximate the integral with a numerical method.
36. Set up the integral for the surface area of the surface of revolution, and approximate the integral with a numerical method.

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